What is CVE-2025-59545?

CVE-2025-59545 is a critical-severity vulnerability in Dnnsoftware Dnn.platform, classified under Cross-site Scripting. CVSS score: 9.1/10. Published 2025-09-23.

How severe is CVE-2025-59545?

Critical severity. CVSS v3 base score is 9.1 out of 10.

XSS in Dnnsoftware Dnn.platform

CVE-2025-59545

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, the Prompt module allows execution of commands that can return raw HTML. Malicious input, even if saniti…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (21.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

Affected products

Dnnsoftware Dnn.platform — versions < 10.1.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-2qxc-mf4x-wr29 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2025-59545?: CVE-2025-59545 is a critical-severity vulnerability in Dnnsoftware Dnn.platform, classified under Cross-site Scripting. CVSS score: 9.1/10. Published 2025-09-23.
How severe is CVE-2025-59545?: Critical severity. CVSS v3 base score is 9.1 out of 10.